normals help

Hi there,

Given nx,ny and nz (normals) how do we determine a slope value? for example when linepicking directly down we return these normals. I would like to translate them into a workable result: a slope value between 0 and 1, with 1 being vertical and 0 being horizontal.

I hope you can help :)

Rob

slope# = 1.0-CollisionNY(blablabla)

Thanks :)

If it's any help the components nx,ny,nz are also the direction cosines for the vector.

The normal vector has length 1 and can be considered as a direction.

nx = Cosine of angle between vector and positive X axis
ny = Cosine of angle between vector and positive Y axis
nz = Cosine of angle between vector and positive Z axis

So ACos() tells you the various angles.